Yeah -- java.lang.Math.atan Aaron
int l1x = x2 - x1; int l1y = y2 - y1; int l2x = x3 - x1; int l2y = y3 - y1; float tan1 = (float)l1y/(float)l1x; float tan2 = (float)l2y/(float)l2x; double ang1 = Math.atan(tan1); double ang2 = Math.atan(tan2); return Math.abs(Math.toDegrees(ang2-ang1)); On Wed, 2 Jun 2004, Ted Hill wrote: > Give three points on a plane, P0, P1 and P2, form a line from P0 to P1 > and a line from P0 to P2. > > > > Is there a Java API to find the angle between these lines? > > > > Thank you, > > > > Ted Hill > > > > > > > > > =========================================================================== > To unsubscribe, send email to [EMAIL PROTECTED] and include in the body > of the message "signoff JAVA2D-INTEREST". For general help, send email to > [EMAIL PROTECTED] and include in the body of the message "help". > =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
